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Plug-and-Play Voltage Stabilization in Inverter-Interfaced Microgrids via a Robust Control Strategy
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, Faculty of Science & Engineering.
University of Kurdistan, Iran.
Ecole Polytech Federal Lausanne, Switzerland.
2017 (English)In: IEEE Transactions on Control Systems Technology, ISSN 1063-6536, E-ISSN 1558-0865, Vol. 25, no 3, 781-791 p.Article in journal (Refereed) Published
Abstract [en]

This paper proposes a decentralized control strategy for the voltage regulation of islanded inverter-interfaced microgrids. We show that an inverter-interfaced microgrid under plug-and-play (PnP) functionality of distributed generations (DGs) can be cast as a linear time-invariant system subject to polytopic-type uncertainty. Then, by virtue of this novel description and use of the results from theory of robust control, the microgrid control system guarantees stability and a desired performance even in the case of PnP operation of DGs. The robust controller is a solution of a convex optimization problem. The main properties of the proposed controller are that: 1) it is fully decentralized and local controllers of DGs that use only local measurements; 2) the controller guarantees the stability of the overall system; 3) the controller allows PnP functionality of DGs in microgrids; and 4) the controller is robust against microgrid topology change. Various case studies, based on time-domain simulations in MATLAB/SimPowerSystems Toolbox, are carried out to evaluate the performance of the proposed control strategy in terms of voltage tracking, microgrid topology change, PnP capability features, and load changes.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2017. Vol. 25, no 3, 781-791 p.
Keyword [en]
Decentralized control; inverters; microgrids; plug-and-play (PnP) capability; robust control; voltage control
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-137081DOI: 10.1109/TCST.2016.2583378ISI: 000398673400002OAI: oai:DiVA.org:liu-137081DiVA: diva2:1093285
Note

Funding Agencies|Swiss National Science Foundation (SNSF) [200020-130528]; Commission for Technology and Innovation (CTI); Swiss Competence Center for Energy Research-Future Swiss Electrical Infrastructure (SCCER-FURIES)

Available from: 2017-05-05 Created: 2017-05-05 Last updated: 2017-05-05

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CiteExportLink to record
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Citation style
  • apa
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